I'm really sorry. That last post of mine wasn't clear. "It works when I plug in my external mouse." should have been "Middle click works on my external mouse when I plug it in, but only on the external mouse". Sorry!
I'm really sorry. That last post of mine wasn't clear. "It works when I plug in my external mouse." should have been "Middle click works on my external mouse when I plug it in, but only on the external mouse". Sorry!